Question

In the figure shown the measure of x is

Answer 1

The interior angles of this triangle MUST add up to 180 degrees:

(180 - 125) + (180 - 75) + x = 180

Then 180 - 125 + 180 - 75 + x = 180, or

                 -125 + 105 + x = 0, or          x= 20 degrees